Root/drivers/zorro/zorro-sysfs.c

1/*
2 * File Attributes for Zorro Devices
3 *
4 * Copyright (C) 2003 Geert Uytterhoeven
5 *
6 * Loosely based on drivers/pci/pci-sysfs.c
7 *
8 * This file is subject to the terms and conditions of the GNU General Public
9 * License. See the file COPYING in the main directory of this archive
10 * for more details.
11 */
12
13
14#include <linux/kernel.h>
15#include <linux/zorro.h>
16#include <linux/stat.h>
17#include <linux/string.h>
18
19#include "zorro.h"
20
21
22/* show configuration fields */
23#define zorro_config_attr(name, field, format_string) \
24static ssize_t \
25show_##name(struct device *dev, struct device_attribute *attr, char *buf) \
26{ \
27    struct zorro_dev *z; \
28                                    \
29    z = to_zorro_dev(dev); \
30    return sprintf(buf, format_string, z->field); \
31} \
32static DEVICE_ATTR(name, S_IRUGO, show_##name, NULL);
33
34zorro_config_attr(id, id, "0x%08x\n");
35zorro_config_attr(type, rom.er_Type, "0x%02x\n");
36zorro_config_attr(serial, rom.er_SerialNumber, "0x%08x\n");
37zorro_config_attr(slotaddr, slotaddr, "0x%04x\n");
38zorro_config_attr(slotsize, slotsize, "0x%04x\n");
39
40static ssize_t zorro_show_resource(struct device *dev, struct device_attribute *attr, char *buf)
41{
42    struct zorro_dev *z = to_zorro_dev(dev);
43
44    return sprintf(buf, "0x%08lx 0x%08lx 0x%08lx\n",
45               (unsigned long)zorro_resource_start(z),
46               (unsigned long)zorro_resource_end(z),
47               zorro_resource_flags(z));
48}
49
50static DEVICE_ATTR(resource, S_IRUGO, zorro_show_resource, NULL);
51
52static ssize_t zorro_read_config(struct file *filp, struct kobject *kobj,
53                 struct bin_attribute *bin_attr,
54                 char *buf, loff_t off, size_t count)
55{
56    struct zorro_dev *z = to_zorro_dev(container_of(kobj, struct device,
57                       kobj));
58    struct ConfigDev cd;
59
60    /* Construct a ConfigDev */
61    memset(&cd, 0, sizeof(cd));
62    cd.cd_Rom = z->rom;
63    cd.cd_SlotAddr = z->slotaddr;
64    cd.cd_SlotSize = z->slotsize;
65    cd.cd_BoardAddr = (void *)zorro_resource_start(z);
66    cd.cd_BoardSize = zorro_resource_len(z);
67
68    return memory_read_from_buffer(buf, count, &off, &cd, sizeof(cd));
69}
70
71static struct bin_attribute zorro_config_attr = {
72    .attr = {
73        .name = "config",
74        .mode = S_IRUGO,
75    },
76    .size = sizeof(struct ConfigDev),
77    .read = zorro_read_config,
78};
79
80static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
81                 char *buf)
82{
83    struct zorro_dev *z = to_zorro_dev(dev);
84
85    return sprintf(buf, ZORRO_DEVICE_MODALIAS_FMT "\n", z->id);
86}
87
88static DEVICE_ATTR(modalias, S_IRUGO, modalias_show, NULL);
89
90int zorro_create_sysfs_dev_files(struct zorro_dev *z)
91{
92    struct device *dev = &z->dev;
93    int error;
94
95    /* current configuration's attributes */
96    if ((error = device_create_file(dev, &dev_attr_id)) ||
97        (error = device_create_file(dev, &dev_attr_type)) ||
98        (error = device_create_file(dev, &dev_attr_serial)) ||
99        (error = device_create_file(dev, &dev_attr_slotaddr)) ||
100        (error = device_create_file(dev, &dev_attr_slotsize)) ||
101        (error = device_create_file(dev, &dev_attr_resource)) ||
102        (error = device_create_file(dev, &dev_attr_modalias)) ||
103        (error = sysfs_create_bin_file(&dev->kobj, &zorro_config_attr)))
104        return error;
105
106    return 0;
107}
108
109

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